6bd067c48e
Move the source files out of staging into their final locations: -mc.h include file in drivers/staging/fsl-mc/include go to include/linux/fsl -source files in drivers/staging/fsl-mc/bus go to drivers/bus/fsl-mc -overview.rst, providing an overview of DPAA2, goes to Documentation/networking/dpaa2/overview.rst Update or delete other remaining staging files -- Makefile, Kconfig, TODO. Update dpaa2_eth and dpio staging drivers. Add integration bits for the documentation build system. Signed-off-by: Stuart Yoder <stuyoder@gmail.com> [rebased, add dpaa2_eth and dpio #include updates] Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> [rebased, split irqchip to separate patch] Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
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/*
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* Copyright 2013-2016 Freescale Semiconductor Inc.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/fsl/mc.h>
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#include "fsl-mc-private.h"
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/**
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* dpmcp_open() - Open a control session for the specified object.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @dpmcp_id: DPMCP unique ID
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* @token: Returned token; use in subsequent API calls
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*
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* This function can be used to open a control session for an
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* already created object; an object may have been declared in
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* the DPL or by calling the dpmcp_create function.
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* This function returns a unique authentication token,
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* associated with the specific object ID and the specific MC
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* portal; this token must be used in all subsequent commands for
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* this specific object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpmcp_open(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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int dpmcp_id,
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u16 *token)
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{
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struct mc_command cmd = { 0 };
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struct dpmcp_cmd_open *cmd_params;
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPMCP_CMDID_OPEN,
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cmd_flags, 0);
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cmd_params = (struct dpmcp_cmd_open *)cmd.params;
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cmd_params->dpmcp_id = cpu_to_le32(dpmcp_id);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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*token = mc_cmd_hdr_read_token(&cmd);
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return err;
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}
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/**
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* dpmcp_close() - Close the control session of the object
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPMCP object
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*
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* After this function is called, no further operations are
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* allowed on the object without opening a new control session.
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpmcp_close(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLOSE,
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cmd_flags, token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpmcp_reset() - Reset the DPMCP, returns the object to initial state.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPMCP object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpmcp_reset(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPMCP_CMDID_RESET,
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cmd_flags, token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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